AMD Radeon PRO W7900 vs AMD Radeon Instinct MI455X
GPU · Specs Compare
Graphics Card
Release Date
May 2023
Jul 2026
Generation
Radeon Pro Navi
Radeon Instinct
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 6.0 x16
Clock Speeds
Base Clock
1760 MHz
1000 MHz
Boost Clock
2495 MHz
2400 MHz
Memory Clock
2250 MHz
1900 MHz
Memory
Memory Size
48GB
432GB
Memory Type
GDDR6
HBM4
Memory Bus
384bit
24576bit
Bandwidth
864.0GB/s
23.3TB/s
Render Config
Compute Units
96
256
Shading Units
6144
32768
TMUs
384
1024
ROPs
192
0
RT Cores
96
—
L1 Cache
256 KB per Array
32 KB (per CU)
L2 Cache
6 MB
192 MB
L3 Cache
96 MB
—
Theoretical Performance
Pixel Rate
479.0 GPixel/s
0 MPixel/s
Texture Rate
958.1 GTexel/s
2457.6 GTexel/s
FP16 (half)
122.6 TFLOPS
157.3 TFLOPS
FP32 (float)
61.32 TFLOPS
157.3 TFLOPS
FP64 (double)
1.916 TFLOPS
2.458 TFLOPS
Graphics Processor
GPU Name
Navi 31
MI450 256CU
GPU Variant
Navi 31 XTW
—
Architecture
RDNA 3.0
CDNA 5.0
Foundry
TSMC
TSMC
Process Size
5 nm
2 nm
Transistors
57.7 billion
320 billion
Die Size
529 mm²
Unknown
Board Design
TDP
295W
2300W
Suggested PSU
600 W
2700 W
Outputs
3x DisplayPort 2.11x mini-DisplayPort 2.1
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.0
3.0
Vulkan
1.4
N/A
Shader Model
6.9
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.